FCC ID: 2ABYN-GX Wireless module/GX-SEKONIC-A

Wireless module/GX-SEKONIC-A Model GX-SEKONIC-A Godox stamped 1 Table of Contents Chapter 1 Overview .......................................................................................................................................................................... 3 1.1 Scope of application ................................................................................................................................................................ 3 1.2 Product overview .................................................................................................................................................................... 3 Chapter 2 Appearance and structure ................................................................................................................................................. 5 2.1 Appearance and dimensions ....................................................................................................................................................... 5 Chapter 3 Electrical Specifications ................................................................................................................................................... 6 3.1 Host connection interface ....................................................................................................................................................... 6 Chapter 4 Wireless Specifications .................................................................................................................................................... 8 4.1 Physical specifications ............................................................................................................................................................ 8 4.2 Protocol specifications ............................................................................................................................................................ 8 Chapter 5 Internal Control ................................................................................................................................................................ 9 Chapter 6 Embedded Specifications ............................................................................................................................................... 10 6.1 Mechanical conditions .............................................................................................................................................................. 10 6.2 Electrical conditions .............................................................................................................................................................. 11 Chapter 7 Radio Compliance .......................................................................................................................................................... 12 7.1 Europe ................................................................................................................................................................................... 12 7.2 United States and Canada ..................................................................................................................................................... 13 2 This specification describes the operation and handling of the following products. Customer name: SEKONIC CORPORATION Product name: Transmitted radio wave module model GX-SEKONIC-A Product code: GX Related Regulations: Radio Law, Specified Low Power Radio Equipment ARIB-T66 Environmental protection: Lead-free solder compatible FCC 47CFR Part15.C, Canada RSS Gen/RSS 210 EU RE Directive 2014/53/EU, ETSI EN 300 440, EN62479 SEKONIC SKGP Chapter 1 Overview 1.1 Scope of application 1.2 Product overview 2.4 GHz ISM band.

"Transmission radio wave module" is a board module product for the wireless transmission function that uses the This product is designed for remote control of professional lighting for photography by incorporating it products such as Sekonic's light meter/color meter. into The "Transmission Radio Module" (Model GX) is compatible with the Godox X series 2.4G receiver system as a compatible radio system. TI, a transmission amplifier with +20dBm output, and the antenna is a pattern antenna on the circuit The internal function of the "transmit radio wave module" (Model GX) consists of a 8-bit microcomputer made by board. The following figure shows the outline of the internal configuration of this product and the connection with the embedded host 3 CC2592 LNA-EN PA-EN RF Control CC2510 Wireless module MCU with RF Function USART Control Interrupt Port Control TxD RxD SYNC_IN#

RESET READY CLEARTOSEND Exposure Meter microcomputer Above: Connect to the parent device with the 12-pin connector on the left side, and operate with the power supply (DC3V) from the parent device. The main connection signals are the trigger switch signal (SyncIn) and UART serial communication (3V). 4 Chapter 2 Appearance and structure 2.1 Appearance and dimensions This product is a printed circuit board module and has a structure in which electronic components such as semiconductors are soldered on one side of the circuit board, and a shield case for protecting the circuit components is soldered on it. The individual manufacturing number, the certification number for compliance with wireless regulations, etc. are displayed on the shield case. Refer to the drawings for details of the external shape and structure. External dimensions (outline) Width 24.700.3mm x length 28.700.3mm x thickness 8.44mm +0.9/-0.6mm

(including connector height) 5 Chapter 3 Electrical Specifications 3.1 Host connection interface This product is connected to the embedded master device with a 2.0 mm pitch/12-pin connector. The signals to be connected are as follows. Pin function 1 2

+3.3VDC

(SYNC_OUT) 4 TX_Complete 7 8 TXD RXD 10 GND 11 ANTTENA 12 GND 3 SYNC_IN 0 : Triggering ON over 100 usec 5 READY 0 ; Unable to receive trigger (Sending trigger) 1 : Able to receive trigger (Completed sending trigger) Status for receiving serial command 6 CLEARTOSEND 0 : Unable to receive serial command (Processing command) 9 RESET 0 : Reset ON Over 1000 usec Signal reliability Power supply +3.3V None (Fixed 1) Input hardware triggering 1 : Triggering OFF None Status for trigger 1 :Able to receive serial command UARTASYNC serial Output data UART (ASYNC serial) Input data Reset module 1 : Reset OFF Ground For jig test Ground 6 Input power supply voltage DC3.0V3.6V, current consumption 0.09A maximum The connector on this product is 200-FH-1-12-43-S-28-24-GO-A (socket), and the square pin type header pin

(product example: IK210SM-S12G-T15) is suitable as the parent device side connector. Power supply (1 pin) Trigger signal (3-pin) Internal operation status signal (4,5) This is a 3V-CMOS logic signal that indicates the operating status of wireless transmission. TX_COMPLETE/READY becomes Low when the trigger signal is recognized, and becomes High when the transmission operation is completed. Active low (minimum 100uS width) transmission request signal. It sends a TRIGGER signal based on the preselected radio system specifications. 3V CMOS level UART interface signal. It can be directly connected to the MPU of the parent device. Serial communication parameters Communication speed 38400bps, 8bit, No parity, Stop 1 bit Do not connect RS232 level signals as this will damage the internal circuitry. Use a level converter circuit when connecting a personal computer, etc. This is an active low hardware reset signal (minimum 1000uS width) that resets the internal operation of the transmitting radio wave module from the parent device. UART interface (7,8 pin) Reset signal (9 pin) ANTTENA signal (11 pin) Active low Testing enable signal. 7 Minimum 2412.999634 Typical Chapter 4 Wireless Specifications 4.1 Physical specifications Item Transmission range Transmission channel Step 1.2 Frequency stability

-50 Transmit output power

-0.5 Antenna gain frequency 4.2 Protocol specifications 0 Maximum 2464.499756 1.5

+10

+4.0 unit MHz MHz kHz dBm dBi This product has a mode compatible with two communication procedures of the system as the operation of wireless transmission. The wireless transmission operation in these two modes is based on the CC2510Fx protocol of TI, but the detailed definitions have their respective characteristics and are not compatible. For example, the following parts are different Channel number and physical frequency assignment Concept of physical/logical channel and group control Transmission data rate and data packet structure The definition outline of each radio interface is as follows. Characteristic items Modulation method Frequency channel definition Godox Mode MSK Unit GHz Frequency

(GHz) 2.439499908 2.441749756 2.442999847 2.444499878 2.446749725 2.447999817 2.449499847 2.451749695 2.452999786 2.454499817 2.456749664 2.457999756 2.459499786 2.461749634 2.462999725 2.464499756 Channel Number Frequency

(GHz) 2.412999634 17 2.414499664 18 2.415999695 19 2.418000000 20 2.419499634 21 2.420999664 22 2.422999969 23 2.424500000 24 2.426749847 25 2.427999939 26 2.429499969 27 2.431749816 28 2.432999908 29 2.434499939 30 2.436249908 31 2.437999878 32 Channel Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 250 16 groups + ALL

(Group settings are combination specification is not possible independent of each other, Kbps Transmission data rate Group control The default settings of the transmitting radio wave module at the first startup are as follows. Please refer to the firmware specifications for detailed operation and control. Firmware Design Specification Godox modeCH 1 8 Chapter 5 Internal Control

"Trigger action"

After the power is turned on and the hardware is reset, the module initializes the internal circuits, outputs the module ID as a startup message to the UART interface, and then transitions to the The operation of the transmission wave module model GX changes as follows.

"Start-up"

idle state.

"Idle"

When the module is idle, it waits for a command from the UART interface, and if no command

(or trigger signal) is received, there is no RF action. The module can identify that the trigger signal (SYNC-IN) is low in all states. But it should following a Prepare main flash Usart command, then the SYNC-IN signal comes. After identifying the trigger signal, the trigger transmission operation is performed. (Minimum time of trigger the set trigger signal is 100uS or more) To implement one-shot trigger operation, do not signal to the Low state for 50mS or more.

"Command operation"

The module can receive UART commands in any state, When the command received from the UART interface is valid, the processing specified by the command is executed. Command processing is a send operation or a message response to the UART interface. After the command execution is completed, this product transits to the idle state.

"Transmission operation"

message specified by the trigger signal or transmission request command in the preset wireless After execution of the transmission operation is completed, this product transits to the As a transmission operation, the module controls the wireless circuit and transmits the wireless idle state. mode. 9 Chapter 6 Embedded Specifications 6.1 Mechanical conditions The transmission radio wave module model GX is designed to be used by incorporating it into the Seconic L-858-D exposure meter. It can be incorporated into other equipment, but it must meet the following conditions. As shown in the figure below, the mechanical conditions for installing the module are as follows:

(CON) must be mechanically adapted. In addition, the space in which the board is installed does not allow the wireless performance of the antenna installed in the module to be demonstrated simply by providing the minimum board space. Host equipment Casing Topside Clearance > 3 mm Shield < 2.54mm height >

Board Clearance 5.8 mm Host Board (PCB) Module Board < 1.63mm thick >

[Module height]

8.44mm Header height 1.5mm Concept of required space (clearance) Do not use metal or resin with an electrostatic shielding property for the casing (casing) of the parent device to be incorporated. If the module part is covered with metal parts, radio waves In order to maximize the wireless performance (communication distance performance) of the antenna, make sure that there is no object around the antenna part of the module. Furthermore, even if a resin housing is used, the characteristics will deteriorate if the antenna part of the module and the case are close to each other. To avoid this, make sure there is a gap of at least 3 mm between the back side of the module (the side without the component/shield case) and the resin case of the embedded parent device. cannot be emitted to the outside. 10

(1) Connection of all functions in order to use all the functions of the module, connect the following signals. READY function 5 4 3 1 2 Pin 6.2 Electrical conditions RESET GND GND RXD TXD 10 12 11 8 7 6 9 Signal reliability

+3.3VDC Power supply +3.3V

(SYNC_OUT) None (Fixed 1) SYNC_IN Input hardware triggering 0 : Triggering ON over 100 usec 1 : Triggering OFF TX_Complete None Status for trigger 0 ; Unable to receive trigger (Sending trigger) 1 : Able to receive trigger (Completed sending trigger) CLEARTOSEND Status for receiving serial command 0 : Unable to receive serial command (Processing command) 1 :Able to receive serial command UARTASYNC serial Output data UART (ASYNC serial) Input data Reset module 0 : Reset ON Over 1000 usec 1 : Reset OFF ANTTENA Active Low for Testing usage Ground Ground 11 Chapter 7 Radio Compliance countries and regions of the world without obtaining permission to use it wirelessly. It is necessary to relevant regulations. The transmission radio wave module model GX uses radio waves in the 2.4 GHz band and can be used in most comply with the equipment aticle 3(2) EN300 440 v2.2.1 Human body electromagnetic field exposure aticle 3(1)a EN62479 The radio wave module model EP has been tested and manufactured based on the technical standards for embedded wireless modules specified by the European Commission's Radio and Communication Terminals Directive (RE Directive ), and bears the CE mark. This product has been tested to the following basic radio and communication device directive (RE Directive) 2014/53/EU radio wave equipment and health/safety requirements. Wireless The manufacturer of the product incorporating this product shall retain the technical data of this product, ensure The transmission wave module model GX complies with the following laws and regulations. 7.1 Europe that the wireless standard values and antenna performance do not deviate from the module product state, and meet the requirements for installation. It is necessary to check. to obtain the test report. Regarding EU directives for electronic devices other than wireless devices, it is necessary to confirm that they are satisfied as final products. (Electromagnetic environment compatibility, low voltage directive, environmental directive, etc.) Equipment incorporating this product must display the "CE mark" on the visible part of the product. At that time, the following points are required. The CE mark can be reduced/enlarged, but the proportion must be in accordance with the regulations. The CE mark requires a minimum height of 5 mm. The CE mark is easy to see and should not disappear or come off. For more information on CE marking requirements, please refer to Article 19 of the Radio &

Telecommunications Terminal Directive (RE Directive, 2014/53/EU). Properly CE marked products can be sold and used within the EU and do not require local certification the final Please contact your sales representative specifications testing in in EU countries. 12 7.2 United States and Canada This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) This device may not cause harmful interference, and

(2) this device must accept any interference received, including interference that may cause undesired operation. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction. If the FCC identification number is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. This exterior label can use wording such as the following:

Contains Transmitter Module FCC ID: 2ABYN-GX Or Contains FCC ID: 2ABYN-GX When the module is installed inside another device, the user manual of the host must contain below warning statements;

1. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) This device may not cause harmful interference.

(2) This device must accept any interference received, including interference that may cause undesired operation. 2. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. The devices must be installed and used in strict accordance with the manufacturer's instructions as described in the user documentation that comes with the product. Any company of the host device which install this modular with Single modular approval should perform the test of radiated emissionand spurious emission according to FCC part 15C : 15.247 and 15.209 requirement,Only if the test result comply with FCC part 15C : 15.247 and 15.209 requirementthen the host can be sold legally. Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. 13 This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions:

(1) This device may not cause interference, and

(2) This device must accept any interference, including interference that may cause undesired operation of the device. Le prsent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorise aux deux conditions suivantes: (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible d'en compromettre le fonctionnement The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction. Le dispositif a t conu pour rencontrer le gnral RF. Le dispositif peut tre utilis dans des conditions de dtention sans effet. For a host manufacture's using a certified modular, if (1) the module's IC number is not visible when installed in the host, or (2) if the host is marketed so that end users do not have straightforward commonly used methods for access to remove the module so that the IC number of the module is visible; then an additional permanent label referring to the enclosed module:

"Contains Transmitter Module IC: " 20034-GX " or "Contains IC: 20034-GX" must be used. Pour un hte, on utilise un modular, si (1) le numro de module est non visible Quand on est install dans le serveur, or (2) si le propritaire est commercialis Straightforward commonly used for the access to remove travail so that the number IC en vue Le module est visible;Ensuite, le label permanent a t attribu au module:

"Contient le Module IC:" 20034-GX" ou "le contenu IC: 20034-GX" doit tre utilis. 14 Revision history Description/Changes Page All 6 9 Godox information External dimensions Channel Frequency and Group control Responsible ZouQiang ZouQiang ZouQiang Revision 0.1 0.2 0.2 15

Label W: 20mm 5mm Wireless module/GX-SEKONIC-A GX Godox FCC ID: 2ABYN-GX IC: 20034-GX XXX-XXXXXX L: 25mm Note: The label is silk-screen on the sample

Godox Photo Equipment Co.,Ltd. 2020.08.27 MET Laboratories, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern:

We, Godox Photo Equipment Co.,Ltd. hereby authorize (Shenzhen STS Test Services Co., Ltd.) to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Name: HONGWU WEN Signature:

TCBJ FORM-4 Issued by: TCB Administrator Revision 6 12/06/10

Godox Photo Equipment Co.,Ltd. 2020.08.27 MET Laboratories, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (Wireless module/GX-SEKONIC-A / GX /FCC ID:

2ABYN-GX) To Whom It May Concern:

This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. required to be submitted with this application be permanently withheld from public review. Please contact me if there is any information you may need. Sincerely, Name: HONGWU WEN Signature:

Schematics Block diagram Operation description TCBJ FORM-4 Issued by: TCB Administrator Revision 6 12/06/10

Single Modular approval Declaration letter We ,apply Single modular approval for Product Name: Wireless module/GX-SEKONIC-A Model: GX FCC ID: 2ABYN-GX According to 996369 D01 Module Equip Auth Guide v01r04 and 15.212 requirement:

1) The radio elements must have the radio frequency circuitry shielded. Physical components and tuning capacitor(s) may be located external to the shield, but must beon the module assembly;

Answer Yeswith shielded 2)The module must have buffered modulation/data inputs to ensure that the device will comply with Part 15 requirements with any type of input signal;

Answer Yes All inputs to the modules are buffered through logic or microprocessor inputs. 3)The modular transmitter must have its own power supply regulation. Answer Yes A low drop out regulator is used for modular power supply regulation. 4)The module must contain a permanently attached antenna, or contain a unique antenna connector, and be marketed and operated only with specific antenna(s), per Sections 15.203, 15.204(b), 15.204(c), 15.212(a), 2.929(b);

Answer Yes Equipped with on-board PCB antenna.

(5)The module must demonstrate compliance in a stand-alone configuration;

Answer Yesthe EUT can be tested for stand-alone configuration..

(6) The module must be labelled with its permanently affixed FCC ID label, or use an electronic display (See KDB Publication 784748 about labelling requirements);

Answer Yes The modular has a permanent fixed label, and below statement was listed in the User Manual;The host device must be labeled to display the FCCID of the module Contains FCC ID: 2ABYN-GX

(7)The module must comply with all specific rules applicable to the transmitter including all the conditions provided in the integration instructions by the grantee;

Answer Yes The module comply with all specific rules applicable to the transmitter including all the conditions provided in the integration instructions by the grantee, Refer to test report and user manual .

(8)The module must comply with RF exposure requirements Answer Yes Transmitter meets MPE calculation of 47 CFR 1.1307. Refer to MPE Reports and Refer to modular installation manual Date 2020-08-27 Signature Name: HONGWU WEN Title: Manager Company: Godox Photo Equipment Co.,Ltd. Address: 1st to 4th Floor,Building 2/1st to 4th Floor,Building 4 ,Yaochuan Industrial Zone,Tangwei Community,Fuhai Street,Baoan District,Shenzhen 518103,China